Improvement in carbureters



J D. ,AVERELL.

Improvement in 'Carbureters.

V vN0. 130,004. 05 1/ Patented July T872) a'lwaeae: we

G ZZMZWA dan gerous.

JOHN D. AVERELL, OF NEW YORK, N. Y.

IMPROVEMENT IN CARBURETERS.

Specification forming part of Letters Patent No. 130,004, dated July 30, 1872.-

i To all whom it may concern Be it known that I, JOHN D. AVERELL, of the city, county, and State of New York, have invented an Improved Float for Carburetors;

and that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing and to the letters of reference marked thereon making a part of this specification.

This invention is in the nature of an improvementin carburetors; and the invention consists in providing a float for said carbureter in such manner as will indicate when the tank of the carbureter is filled, during the process of filling the same with gasoline or other hydrocarbon.

It has heretofore been found difficult to apply to carburetersan indicator for the purpose of determining when the same is sufficiently filled with the hydrocarbon used during the process of filling the same, and thus avoid overflowing. An index-hand, with dial, has been tried; but the objection to such an appliance is, that a light of some kind is necessary-to ascertain its recording, which, by

reason of the highly-inflammable nature of the vapors likely to escape from the carbureter, is Glass tubes set into the side of the carbureter are equally objectionable, from their liability to be broken, allowing the inflammable fluid andogascs to escape.

To obviate these objections, and at the same time produce a sure indicator that will, without fai1,"indicate when the tank of the carbureter issufficiently full, is the purpose of this invention.

In the accompanying sheet of drawing, Figure 1 is a longitudinal section of float; Fig. 2, a plan ortop view of same.

Similar letters of reference indicate like parts in theseveral figures.

A represents a float, which is a hollow disk of metal, with anopenin g, B, through the center of the same. This float is carefully made fluid-tight. Securedtothe under side of the float A,and extending below it, is a framework orbridge, a. .Firmly secured to this bridge, by one of its'ends, is a stem, b, which extends upward. Through the opening B is inserted a cylinder, 0, of somewhat less diameter than the opening B. This cylinder is of said cylinder, or rather through a tube, g,-

fitted in said cylinder. Fitting within the cylinder (l is an inverted cylinder, D, which is of less diameter than the cylinder 0. The lower end of the cylinderD is open, and the upper end is closed and firmly secured to the upper end of the stem b. The space between the cylinders O and D is filled with glycerine, d, or some other suitable fluid, which makes a liquid seal.

The apparatus being thus constructed, it is secured to an opening in the top plate of a carbureter by screwing the cylinder 0 thereto, the point of attachment being covered by a screw-cap, f. (See Fig. 1.)

The float being now in position, its operation is as follows; The necessary fluid is poured into the carbureter in the usual manner, and when the'fluid has reached the height required it comes in contact with the under side of the float A and lifts it, forcing the cylinder D upward, so that it is only necessary to unscrew the screw-cap f, place the hand over the cylinder D, and when this cylinder rises sufficiently to touch the hand the carburotor is sufliciently filled. The glycerine placed in the space between the cylinders O and D effectually prevents any leakage of vapor from the carbureter through the place of attachment of the float to the carbureter.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

A float for indicating the quantity of fluid in a carbureter when the same is constructed with a hollow disk, in combination witha cylinder having an inverted cylinder fitting there in, the space between said cylinder and said inverted cylinder being filled with afluid for the purpose of making a liquid seal, as described.

' JOHN D. AVERELL. Witnesses:

- H. L. WATTENBERG, G. M. PLYMITON- PATENT Orrron. 

